3644667163 has 2 divisors, whose sum is σ = 3644667164. Its totient is φ = 3644667162.

The previous prime is 3644667127. The next prime is 3644667227. The reversal of 3644667163 is 3617664463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3644667163 - 2¹³ = 3644658971 is a prime.

It is not a weakly prime, because it can be changed into another prime (3644667263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822333581 + 1822333582.

It is an arithmetic number, because the mean of its divisors is an integer number (1822333582).

Almost surely, 2^3644667163 is an apocalyptic number.

3644667163 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644667163 is an equidigital number, since it uses as much as digits as its factorization.

3644667163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 46.

The square root of 3644667163 is about 60371.0788623162. The cubic root of 3644667163 is about 1538.9315075161.

The spelling of 3644667163 in words is "three billion, six hundred forty-four million, six hundred sixty-seven thousand, one hundred sixty-three".